Best Dye-Based Water Resistant Fountain Pen Inks

I care about the longevity of what I write by hand with fountain pens. Pigment-based inks are permanent, but can clog fountain pens, and are pretty expensive. So I've done lots of research and testing to find dye-based inks with good water resistance. This is my shortlist.

  • Pilot Namiki
    • Blue
    • Blue-Black
    • Black
  • Platinum
    • Blue-Black
    • Black
  • Kaweco
    • Summer Purple
    • Smokey Gray
    • Midnight Blue
    • Pearl Black